Nettle growing for crop production | Nātru audzēšana ražas ieguvei
2019
Zeipina, S., Latvia Univ. of Life Sciences and Technologies, Cerini, Krimuna Parish, Dobele Municipality (Latvia). Inst. of Horticulture | Lepse, L., Latvia Univ. of Life Sciences and Technologies, Cerini, Krimuna Parish, Dobele Municipality (Latvia). Inst. of Horticulture | Alsina, I., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia). Faculty of Agriculture
Leaf vegetables are a good source of indispensable components for human food. Vegetables usually contain natural antioxidants, vitamins, minerals and other biologically active compounds. The yield depends on the climate and growing conditions, genotype, plant development stage, harvesting time and other factors. Nettles are broadly used for food, textile production and pharmacy. Experiments were carried out to clarify the effect of growing and harvesting technology on the yield of four different nettle clones. Experiments were arranged in strongly altered by cultivation soil in the Institute of Horticulture. Root stolons of Urtica dioica L. were collected in Pure village and planted in the autumn of 2013 using two basic fertilization variants: without fertilisation (control) and fertilized with peat/manure compost 4 kg mE−2 . Root stolons were planted in double row planting beds, with 40 cm distance between rows in bed, 80 cm between centres of planting beds and 20 cm between plants in a row. The trial was arranged in 4 replicates; the total area of each experimental plot was 3 square meters. The yield was harvested in the period of 2015–2017 by using two harvesting approaches: 1) the yield was harvested two times per season when shoots were 10–15 cm long; 2) the yield was harvested four times per season, when shoots were less than 10 cm long. The research findings showed that the yield of nettles gradually reduced with the ageing of plantation. The yield ranged between 0.3 to 4.8 t haE−1.
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